Match the following columns:Column-IColumn-II | vedclass

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(A) The innate immunity consists of four types of barriers:$1$. Physical barriers: Skin and mucus coating of the respiratory, gastrointestinal, and ur

Vedclass · Accepted Answer

$1-c, 2-d, 3-b, 4-a$

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(A) The innate immunity consists of four types of barriers:$1$. Physical barriers: Skin and mucus coating of the respiratory, gastrointestinal, and urogenital tracts prevent the entry of microorganisms $(2-d)$.$2$. Physiological barriers: Acid in the stomach, saliva in the mouth, and tears from eyes prevent microbial growth $(1-c)$.$3$. Cellular barriers: Certain types of leukocytes like $PMNL$-neutrophils and monocytes, and macrophages in tissues, phagocytose and destroy microbes $(3-b)$.$4$. Cytokine barriers: Virus-infected cells secrete proteins called interferons which protect non-infected cells from further viral infection $(4-a)$.Thus, the correct match is $1-c, 2-d, 3-b, 4-a$.

Column-$I$	Column-$II$
$1.$ Saliva and tears	$a.$ Cytokine barrier
$2.$ Mucus coating	$b.$ Cellular barrier
$3.$ $PMNL$	$c.$ Physiological barrier
$4.$ Interferons	$d.$ Physical barrier

Match the following columns:
Column-$I$ Column-$II$
$1.$ Saliva and tears $a.$ Cytokine barrier
$2.$ Mucus coating $b.$ Cellular barrier
$3.$ $PMNL$ $c.$ Physiological barrier
$4.$ Interferons $d.$ Physical barrier

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Match the following columns:Column-$I$Column-$II$$1.$ Saliva and tears$a.$ Cytokine barrier$2.$ Mucus coating$b.$ Cellular barrier$3.$ $PMNL$$c.$ Physiological barrier$4.$ Interferons$d.$ Physical barrier